Tips for Hardy Gardeners: Caring for houseplants
Overwatering is the most common reason indoor plants don't survive. Protected from all-day sunlight and outdoor winds, Tom Kasper advises us that many indoor plants can get by with less water than those in the outdoor garden, some needing water only about once a week. Another tip is to pour off the excess water that gathers in the saucer below the pot. In addition to keeping your plants alive, it also can help reduce the emergence of pests that thrive in overwatered plants and soggy soil, like spider mites, scale insects, whiteflies, and aphids.